One-stage method is a modern technology of the production of PET package in injection stretch blowing machinesю They allow to trace the full cycle of PET bottles, from PET granules to the finished product. At the same time, preforms are produced as it is done in two-stage process, but they are not dropped down, but move inside the machine up to the blowing stage and unloading.

The main advantages of one-stage containers are the high quality of the bottles,  blemish-free surface, control over preform production, possibility to choose different types of neck and thread, thread start can be chosen to coincide with bottle shape, the distribution of the material is more even and stable, which provides material saving and to achieve the aesthetic appearance of the bottles.

In November 2016 ArtPack Ltd implemented technology of one-stage PET production  using the machine of Nissei ASB.